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Question 43 Iodized salt is a

A) mixture of potassium iodide and common salt
B) mixture of molecular iodine and common salt
C) compount formed by combination of potassium iodide and common salt
D) compound formed by molecular iodine and common salt

Friday, 9 October 2015

Question 95 Which of the following statements regarding heavy water are correct?

1. It is extensively used as a moderator in nuclear reactors2. It cannot be used in exchange reaction to study reaction mechanism3. Viscosity of heavy water is relatively smaller than that of ordinary water4. The dielectric constant of heavy water is smaller than that of ordinary water
Select the correct answer using the code given below:
A) 1 and 2
B) 2 and 3
C) 3 and 4
D) 1 and 4

Question 83 Why is graphite used in electrolytic cells?

A) Graphite is soft and can be easily moulded into electrodes
B) Graphite is made of layers of carbon atoms which can slide
C) Graphite is inert to most of the chemicals and remains intact in electrolytic cells
D) Graphite is a good conductor of electricity

Answer: Graphite is inert to most of the chemicals and remains intact in electrolytic cells